package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.mysql.cj.util.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.no.utils.PageUtils;
import com.atguigu.common.no.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {
    @Autowired
    AttrService attrService;
    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }
//查出所有分组分类
@Override
public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
    //com.atguigu.gulimall.product.vo
    //1、查询分组信息
    List<AttrGroupEntity> attrGroupEntities = this.list(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

    //2、查询所有属性
    List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(group -> {
        AttrGroupWithAttrsVo attrsVo = new AttrGroupWithAttrsVo();
        BeanUtils.copyProperties(group,attrsVo);
        List<AttrEntity> attrs = attrService.getRelationAttr(attrsVo.getAttrGroupId());
        attrsVo.setAttrs(attrs);
        return attrsVo;
    }).collect(Collectors.toList());

    return collect;


}

    @Override
    public PageUtils queryPage(Long catelogid, Map<String, Object> params) {
        if (catelogid == 0) {

           IPage<AttrGroupEntity> page= this.page(
                    new Query<AttrGroupEntity>().getPage(params), new QueryWrapper<AttrGroupEntity>()
            );

            return new PageUtils(page);
        }
        else
        {
            String key = (String) params.get("key");

            QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>().eq("catelog_id",catelogid);
            if (!StringUtils.isNullOrEmpty(key))
            {
                wrapper.and((obj) -> {
                    obj.eq("attr_group_id", key).or().like("attr_group_name", key);


                });
            }
            IPage<AttrGroupEntity> page= this.page(
                    new Query<AttrGroupEntity>().getPage(params), wrapper);
            //select * from tablr where Catrid=catid and( a=key or b like % s%)
            return new PageUtils(page);
        }

    }
}